Solis Díaz, C.; Navarrete Algaba, L.; Bozza, F.; Bonanos, N.; Serra Alfaro, JM. (2015). Catalytic Surface Promotion of Composite Cathodes in Protonic Ceramic Fuel Cells. ChemElectroChem. 2(8):1106-1110. doi:10.1002/celc.201500068
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/82491
Title:
|
Catalytic Surface Promotion of Composite Cathodes in Protonic Ceramic Fuel Cells
|
Author:
|
Solis Díaz, Cecilia
Navarrete Algaba, Laura
Bozza, Francesco
Bonanos, Nikolaos
Serra Alfaro, José Manuel
|
UPV Unit:
|
Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química
|
Issued date:
|
|
Abstract:
|
[EN] Composite cathodes based on an electronic conductor and a protonic conductor show advantages for protonic ceramic fuel cells. In this work, the performance of a La5.5WO11.25-delta/La0.8Sr0.2MnO3+delta (LWO/LSM) composite ...[+]
[EN] Composite cathodes based on an electronic conductor and a protonic conductor show advantages for protonic ceramic fuel cells. In this work, the performance of a La5.5WO11.25-delta/La0.8Sr0.2MnO3+delta (LWO/LSM) composite cathode in a fuel cell based on an LWO protonic conducting electrolyte is shown and catalytically improved. The limiting processes were first unambiguously associated to surface steps, and the reaction rate was significantly enhanced by 1) tailoring the catalytic activity through electrode surface impregnation with intrinsically catalytic nanoparticles and 2) electrochemical activation of surface species by imposing a net current through the electrode.
[-]
|
Subjects:
|
Catalytic promotion
,
Fuel cells
,
Lanthanum tungstate
,
Proton conductors
,
Reduction
|
Copyrigths:
|
Cerrado |
Source:
|
ChemElectroChem. (issn:
2196-0216
)
|
DOI:
|
10.1002/celc.201500068
|
Publisher:
|
Wiley
|
Publisher version:
|
http://dx.doi.org/10.1002/celc.201500068
|
Project ID:
|
info:eu-repo/grantAgreement/EC/FP7/227560/EU
info:eu-repo/grantAgreement/EC/FP7/621244/EU
|
Thanks:
|
Funding from the European Union (FP7 Project EFFIPROGrant Agreement 227560 and FP7 Project ELECTRAGrant Agreement 621244) and the Spanish Government (ENE2011-24761 and SEV-2012-0267) is kindly acknowledged.
|
Type:
|
Artículo
|